“Enough is enough: Stop wasting money on vitamin and mineral supplements,” reads one critique of our collective vitamin habit published in the Annals of Internal Medicine.

In our world of vitamin-fortified juice and breakfast cereals, the average North American is getting more than enough vitamins simply from eating a relatively balanced diet.

What’s more, we are utterly barraged with misinformation about what vitamins actually do: Vitamin C doesn’t cure colds and vitamin D doesn’t cure depression. In truth, all they can definitively do is ward off scurvy and strengthen bones, respectively.

And as the above video explain, all these pricey and unnecessary supplements aren’t harmless.